File photo of the sun setting over the Ifo extension refugee camp in Dadaab
The sun sets over the Ifo extension refugee camp in Dadaab, near the Kenya-Somalia border in this July 31, 2011 file photo. Kenya on March 25, 2014, ordered all Somali refugees living in urban areas to return to their camps in a bid to end attacks by Islamist militants carried out in retaliation for Kenya's intervention in neighbouring Somalia. REUTERS/Thomas Mukoya/Files (KENYA - Tags: CIVIL UNREST SOCIETY IMMIGRATION POLITICS)
File photo of Somali refugees eating porridge during break time at the Liban integrated academy at the Ifo refugee camp in Dadaab
Somali refugees eat porridge during break time at the Liban integrated academy at the Ifo refugee camp in Dadaab, near the Kenya-Somalia border, in this August 2, 2011 file photo. Kenya on March 25, 2014, ordered all Somali refugees living in urban areas to return to their camps in a bid to end attacks by Islamist militants carried out in retaliation for Kenya's intervention in neighbouring Somalia. REUTERS/Thomas Mukoya/Files (KENYA - Tags: TPX IMAGES OF THE DAY SOCIETY IMMIGRATION CIVIL UNREST POLITICS)
File photo of an aerial view showing makeshift shelters at the Dagahaley camp in Dadaab, near the Kenya-Somalia border
An aerial view shows makeshift shelters at the Dagahaley camp in Dadaab, near the Kenya-Somalia border in this April 3, 2011 file photo. Kenya on March 25, 2014 ordered all Somali refugees living in urban areas to return to their camps in a bid to end attacks by Islamist militants carried out in retaliation for Kenya's intervention in neighbouring Somalia. Picture taken April 3, 2011. REUTERS/Thomas Mukoya/Files (KENYA - Tags: SOCIETY CIVIL UNREST DISASTER ENVIRONMENT)
File photo of a newly arrived Somali refugee displaying his food ration card at Ifo refugee camp
A newly arrived Somali refugee displays his food ration card as he queues for relief at a World Food Programme distribution centre at the Ifo refugee camp in Dadaab, near the Kenya-Somalia border, in this August 1, 2011 file photo. Kenya on March 25, 2014 ordered all Somali refugees living in urban areas to return to their camps in a bid to end attacks by Islamist militants carried out in retaliation for Kenya's intervention in neighbouring Somalia. Picture taken August 1, 2011. REUTERS/Thomas Mukoya/Files (KENYA - Tags: SOCIETY CIVIL UNREST DISASTER ENVIRONMENT) - RTR2PIPA
Relatives and friends mourn as the bodies of people killed after a boat carrying mostly Congolese refugees capsized at the shores of Lake Albert are brought to the landing zone in Ntoroko district
Relatives and friends mourn as the bodies of people killed after a boat carrying mostly Congolese refugees capsized at the shores of Lake Albert are brought to the landing zone in Ntoroko district in Western Uganda, March 24, 2014. One hundred and seven people have died after a boat capsized in a lake along the border of Uganda and the Democratic Republic of Congo, Ugandan police said on Monday after recovering more bodies. The boat carrying mostly Congolese refugees tipped over early on Saturday in Lake Albert. Police say the boat was overloaded, a common factor in similar tragedies in the east African country. REUTERS/Thomas Mukoya (UGANDA - Tags: SOCIETY DISASTER)
Volunteers and Ugandan government authorities sail in a boat carrying the bodies of people killed after a boat carrying mostly Congolese refugees capsized at the shores of Lake Albert in Ntoroko district in Western Uganda
Volunteers and Ugandan government authorities sail in a boat carrying the bodies of people killed after a boat carrying mostly Congolese refugees capsized at the shores of Lake Albert in Ntoroko district in Western Uganda, March 24, 2014. One hundred and seven people have died after a boat capsized in a lake along the border of Uganda and the Democratic Republic of Congo, Ugandan police said on Monday after recovering more bodies. The boat carrying mostly Congolese refugees tipped over early on Saturday in Lake Albert. Police say the boat was overloaded, a common factor in similar tragedies in the east African country. REUTERS/Thomas Mukoya (UGANDA - Tags: DISASTER)
Volunteers push a rescue boat carrying bodies of people killed when their boat capsized at the shores of Lake Albert in Ntoroko district
Volunteers push a rescue boat carrying bodies of people killed when their boat capsized at the shores of Lake Albert in Ntoroko district in Western Uganda, March 24, 2014. One hundred and seven people have died after a boat capsized in a lake along the border of Uganda and the Democratic Republic of Congo, Ugandan police said on Monday after recovering more bodies. The boat carrying mostly Congolese refugees tipped over early on Saturday in Lake Albert. Police say the boat was overloaded, a common factor in similar tragedies in the east African country. REUTERS/Thomas Mukoya (UGANDA - Tags: SOCIETY DISASTER)
Members of the Uganda Police Marine Unit sail to the shores of Lake Albert after a search mission for the bodies of people killed after a boat carrying mostly Congolese refugees capsized in Ntoroko district in Western Uganda
Members of the Uganda Police Marine Unit sail to the shores of Lake Albert after a search mission for the bodies of people killed after a boat carrying mostly Congolese refugees capsized in Ntoroko district in Western Uganda, March 24, 2014. One hundred and seven people have died after a boat capsized in a lake along the border of Uganda and the Democratic Republic of Congo, Ugandan police said on Monday after recovering more bodies. The boat carrying mostly Congolese refugees tipped over early on Saturday in Lake Albert. Police say the boat was overloaded, a common factor in similar tragedies in the east African country. REUTERS/Thomas Mukoya (UGANDA - Tags: DISASTER SOCIETY)
Time for a public-private partnership to defeat TB in southern Africa
It has become a cliché that diseases respect no borders. But the case of mine workers in southern Africa, with the highest TB infection rates in the world, is a stark example of clichés being anchored in reality.